I used to spend 30-45 minute, rubbing very painful blisters (the skin would come off) after a time I got to where I could come quicker which was my goal
later I found that I can come too easy and it was a problem,
but I've heard some say it did not bother them at all...
so it's up to you, but if I had it to do over I wouldn't
even if I walked around for days with a woody
it's where your mind is, if you allow yourself to think of it, you will go there
Ozzie_Gavin is wrong. It's the other way around. It's believed over masturbation can be a cause for premature ejaculation. One study conducted on people who suffered from premature ejaculation showed that majority of those masturbated once or more daily
Cant possibly see how, you should be building your endurance through masturbation and reducing the sensitivity of the nerves that cause the sapsm eaction that is ejaculation.